Residential/Commercial Generator Sets
Models:
14/20RESA
14/20RESAL
Controllers:
RDC2
DC2
TP-6803 12/11
Installation
Engine exhaust from this product contains chemicals
known to the State of California to cause cancer, birth
defects, or other reproductive harm.
WARNING
California Proposition 65
Product Identification Information
Generator Set Identification Numbers
Record the product identification numbers from the
generator set nameplate(s).
Model Designation
Specification Number
Serial Number
Accessory Number Accessory Description
Engine Identification
Record the product identification information from the
engine nameplate.
Manufacturer
Model Designation
Serial Number
Controller Identification
Record the controller description from the generator set
operation manual, spec sheet, or sales invoice.
Controller Description
Table of Contents
TP-6803 12/11 Table of Contents 3
Product Identification Information 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Precautions and Instructions 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Startup and Registration 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Assistance 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 1 Installation 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Introduction 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Lifting 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Generator Set Inspection 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 Location and Mounting 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4.1 Mounting Area 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4.2 Exhaust Requirements 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5 Dimension Drawings 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6 Fuel Requirements 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6.1 Fuel Supply 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.6.2 Fuel Pipe Size 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7 Fuel Conversion 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7.1 Fuel Conversion, 14RESA/RESAL 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.7.2 Fuel Conversion, 20RESA/RESAL 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.8 Electrical Connections 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.8.1 Grounding 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.8.2 Electrical Lead Entry 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.8.3 Field-Connection Terminal Block 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.8.4 Power Supply 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.8.5 Transfer Switch Connection 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.8.6 System Connections with Accessory Modules 24. . . . . . . . . . . . . . . . . . . . .
1.8.7 Connect Optional Programmable Interface Module (PIM) 29. . . . . . . . . . .
1.8.8 Connect Optional Load Control Module (LCM) 29. . . . . . . . . . . . . . . . . . . . .
1.9 Battery 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.10 Generator Set Accessories 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.10.1 Regulator Heater 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.10.2 Carburetor Heater 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.10.3 OnCue Home Generator Management System 33. . . . . . . . . . . . . . . . . . . .
1.11 Prestart Installation Check 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.12 Set the Exerciser 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.12.1 RDC2 Controller 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.12.2 DC2 Controller 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.12.3 Loaded Exercise 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Section 2 Wiring Diagrams 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix A Abbreviations 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix B Electrical Lead Entry Template 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TP-6803 12/114
Notes
TP-6803 12/11 5Safety Precautions and Instructions
Safety Precautions and Instructions
IMPORTANT SAFETY INSTRUCTIONS.
Electromechanical equipment,including generator sets, transferswitches,switchgear, andaccessories,
can cause bodily harm and poselife-threatening danger whenimproperly installed, operated, ormaintained. To prevent accidents beaware of potential dangers and actsafely. Read and follow all safety
precautions and instructions. SAVETHESE INSTRUCTIONS.
Thismanual hasseveral typesofsafetyprecautions and instructions: Danger,Warning, Caution, and Notice.
DANGER
Danger indicates the presence of ahazard that will cause severe
personal injury, death, orsubstantial property damage.
WARNING
Warning indicates the presence of ahazard that can cause severe
personal injury, death, orsubstantial property damage.
CAUTION
Caution indicates the presence of ahazard that will or can cause minor
personal injury or property damage.
NOTICE
Notice communicates installation,operation, or maintenance informationthat is safety related but not hazardrelated.
Safety decals affixed to the equipment
in prominent places alert the operatoror service technician to potentialhazards and explain how to act safely.The decals are shown throughout thispublication to improve operatorrecognition. Replace missing or
damaged decals.
Accidental Starting
Accidental starting.Can cause severe injury or death.
Disconnect the battery cables beforeworking on the generator set.
Remove the negative (--) lead firstwhen disconnecting the battery.Reconnect the negative (--) lead lastwhen reconnecting the battery.
WARNING
Disabling the generator set.Accidental starting can causesevere injury or death. Beforeworking on the generator set orequipment connected to the set,
disable the generator set as follows:(1) Press the generator set off/resetbutton to shut down the generator set.(2) Disconnect the power to the batterycharger, if equipped. (3) Remove thebattery cables, negative (--) lead first.
Reconnect the negative (--) lead lastwhen reconnecting the battery. Followthese precautions to prevent thestarting of the generator set by theremote start/stop switch.
Battery
Sulfuric acid in batteries.Can cause severe injury or death.
Wear protective goggles andclothing. Battery acid may cause
blindness and burn skin.
WARNING
Explosion.Can cause severe injury or death.Relays in the battery chargercause arcs or sparks.
Locate the battery in awell-ventilatedarea. Isolate thebattery charger fromexplosive fumes.
WARNING
Battery electrolyte is a dilutedsulfuric acid. Batteryacidcancausesevere injury or death. Battery acid
can cause blindness and burn skin.Always wear splashproof safetygoggles, rubber gloves, and bootswhen servicing the battery. Do notopen a sealed battery or mutilate thebattery case. If battery acid splashes in
the eyes or on the skin, immediatelyflush the affected area for 15 minuteswith large quantities of clean water.Seek immediatemedical aid in thecaseof eye contact. Never add acid to a
battery after placing the battery inservice, as thismay result inhazardousspattering of battery acid.
Battery acid cleanup. Battery acidcan cause severe injury or death.Battery acid is electrically conductive
and corrosive. Add 500 g (1 lb.) ofbicarbonate of soda (baking soda) to acontainer with 4 L (1 gal.) of water andmix the neutralizing solution. Pour theneutralizing solution on the spilledbattery acid and continue to add the
neutralizing solution to the spilledbattery acid until all evidence of achemical reaction (foaming) hasceased. Flush the resulting liquid withwater and dry the area.
TP-6803 12/116 Safety Precautions and Instructions
Battery gases. Explosion can causesevere injury or death. Battery gasescan cause an explosion. Do not smokeorpermit flamesor sparks to occurnear
a battery at any time, particularly whenit is charging. Do not dispose of abattery in a fire. To prevent burns andsparks that could cause an explosion,avoid touching the battery terminalswith tools or other metal objects.
Removeall jewelrybefore servicing theequipment. Discharge static electricityfrom your body before touchingbatteries by first touching a groundedmetal surfaceaway from thebattery. Toavoid sparks, do not disturb the battery
charger connections while the batteryis charging. Always turn the batterycharger off before disconnecting thebattery connections. Ventilate thecompartments containing batteries toprevent accumulation of explosive
gases.
Battery short circuits. Explosioncan cause severe injury or death.Short circuits can cause bodily injuryand/or equipment damage.Disconnect the battery before
generator set installation ormaintenance. Remove all jewelrybefore servicing the equipment. Usetools with insulated handles. Removethe negative (--) lead first when
disconnecting the battery. Reconnectthe negative (--) lead last whenreconnecting the battery. Neverconnect the negative (--) battery cableto the positive (+) connection terminalof the starter solenoid. Do not test the
battery condition by shorting theterminals together.
Engine Backfire/FlashFire
Fire.Can cause severe injury or death.
Do not smoke or permit flames orsparks near fuels or the fuel system.
WARNING
Servicing the air cleaner. A suddenbackfire can cause severe injury ordeath. Do not operate the generatorset with the air cleaner removed.
Servicing the fuel system. A flashfirecancausesevere injuryordeath.Do not smoke or permit flames orsparks near the carburetor, fuel line,fuel filter, fuel pump, or other potentialsources of spilled fuels or fuel vapors.
Catch fuels in an approved containerwhen removing the fuel line orcarburetor.
Combustible materials. A fire cancause severe injury or death.
Generator set engine fuels and fuelvapors are flammable and explosive.Handle these materials carefully tominimize the risk of fire or explosion.Equip the compartment or nearby areawith a fully charged fire extinguisher.
Select a fire extinguisher rated ABC orBC for electrical fires or asrecommended by the local fire code oran authorized agency. Train allpersonnel on fire extinguisheroperation and fire prevention
procedures.
Exhaust System
Carbon monoxide.Can cause severe nausea,fainting, or death.
The exhaust system must be
leakproof and routinely inspected.
WARNING
Generator set operation. Carbonmonoxidecancauseseverenausea,fainting, or death. Carbon monoxideis an odorless, colorless, tasteless,
nonirritating gas that can cause death ifinhaled for even a short time. Avoidbreathingexhaust fumeswhenworkingon or near the generator set. Neveroperate the generator set inside abuilding. Never operate the generator
set where exhaust gas could seepinside or be drawn into a potentiallyoccupied building throughwindows, airintake vents, or other openings.
Carbon monoxide detectors.
Carbonmonoxide can cause severenausea, fainting, or death. Installcarbon monoxide detectors on eachlevel of any building adjacent to thegenerator set. Locate the detectors toadequately warn the building’s
occupants of the presence of carbonmonoxide. Keep the detectorsoperational at all times. Periodicallytest and replace the carbon monoxidedetectors according to themanufacturer’s instructions.
Carbon monoxide symptoms.Carbonmonoxide can cause severenausea, fainting, or death. Carbonmonoxide isapoisonousgaspresent inexhaust gases. Carbonmonoxide isanodorless, colorless, tasteless,
nonirritating gas that can cause death ifinhaled for even a short time. Carbonmonoxidepoisoningsymptoms includebut are not limited to the following:
Light-headedness, dizziness Physical fatigue, weakness in
joints and muscles Sleepiness, mental fatigue,
inability to concentrateor speak clearly, blurred vision
Stomachache, vomiting, nauseaIf experiencing any of these symptoms
and carbon monoxide poisoning ispossible, seek fresh air immediatelyand remain active. Do not sit, lie down,or fall asleep. Alert others to thepossibility of carbon monoxidepoisoning. Seek medical attention if
the condition of affected persons doesnot improvewithinminutes of breathingfresh air.
TP-6803 12/11 7Safety Precautions and Instructions
Fuel System
Explosive fuel vapors.Can cause severe injury or death.
Use extreme care when handling,storing, and using fuels.
WARNING
The fuel system. Explosive fuelvapors can cause severe injury ordeath. Vaporized fuels are highlyexplosive. Use extreme care whenhandling and storing fuels. Store fuels
in a well-ventilated area away fromspark-producing equipment and out ofthe reach of children. Never add fuel tothe tank while the engine is runningbecause spilled fuel may ignite oncontact with hot parts or from sparks.
Do not smoke or permit flames orsparks to occur near sources of spilledfuel or fuel vapors. Keep the fuel linesand connections tight and in goodcondition. Do not replace flexible fuellines with rigid lines. Use flexible
sections to avoid fuel line breakagecausedbyvibration. Donotoperate thegenerator set in the presence of fuelleaks, fuel accumulation, or sparks.Repair fuel systems before resuming
generator set operation.
Gas fuel leaks. Explosive fuelvapors can cause severe injury ordeath. Fuel leakage can cause anexplosion. Check the LP vapor gas ornatural gas fuel system for leakage by
using a soap and water solution withthe fuel system test pressurized to6--8 ounces per square inch(10--14 inches water column). Do notuse a soap solution containing eitherammonia or chlorine because both
preventbubble formation. Asuccessfultest depends on the ability of thesolution to bubble.
Hazardous Noise
Hazardous noise.
Can cause hearing loss.
Never operate the generator set
without a muffler or with a faulty
exhaust system.
CAUTION
Engine noise. Hazardous noise cancause hearing loss. Generator setsnot equipped with sound enclosurescan produce noise levels greater than105 dBA. Prolongedexposure tonoise
levels greater than 85 dBA can causepermanent hearing loss. Wear hearingprotection when near an operatinggenerator set.
Hazardous Voltage/Moving Parts
Hazardous voltage.Will cause severe injury or death.
This equipmentmust be installed andserviced by qualified electrical
personnel.
DANGER
Hazardous voltage.Can cause severe injury or death.
Operate the generator set only whenall guards and electrical enclosures
are in place.
Moving parts.
WARNING
Hazardous voltage.
Backfeed to the utility system can
cause property damage, severe
injury, or death.
If the generator set is used for
standby power, install an automatic
transfer switch to prevent inadvertent
interconnection of standby and
normal sources of supply.
WARNING
Welding the generator set.Can cause severe electricalequipment damage.
Never weld components of the
generator set without firstdisconnecting the battery, controllerwiringharness, andengineelectroniccontrol module (ECM).
CAUTION
Grounding electrical equipment.Hazardous voltage can causesevere injury or death. Electrocutionis possible whenever electricity ispresent. Ensure you comply with allapplicable codes and standards.
Electrically ground the generator set,transfer switch, and related equipmentandelectrical circuits. Turnoff themaincircuit breakers of all power sourcesbefore servicing the equipment. Nevercontact electrical leads or appliances
when standing in water or on wetground because these conditionsincrease the risk of electrocution.
TP-6803 12/118 Safety Precautions and Instructions
Welding on the generator set. Cancause severe electrical equipmentdamage. Before welding on thegenerator set perform the following
steps: (1) Remove the battery cables,negative (--) lead first. (2) Disconnectall engine electronic control module(ECM) connectors. (3) Disconnect allgenerator set controller and voltageregulator circuit board connectors.
(4) Disconnect the engine battery-charging alternator connections.(5) Attach the weld ground connectionclose to the weld location.
Connecting the battery and the
battery charger. Hazardous voltagecan cause severe injury or death.Reconnect the battery correctly,positive to positive and negative tonegative, to avoid electrical shock anddamage to the battery charger and
battery(ies). Have a qualifiedelectrician install the battery(ies).
Short circuits. Hazardousvoltage/current can cause severeinjury or death. Short circuits cancause bodily injury and/or equipment
damage. Do not contact electricalconnections with tools or jewelry whilemaking adjustments or repairs.Removeall jewelrybefore servicing theequipment.
Electrical backfeed to the utility.
Hazardous backfeed voltage cancause severe injury or death. Installa transfer switch in standby powerinstallations to prevent the connectionof standby and other sources of power.Electrical backfeed into a utility
electrical system can cause severeinjury or death to utility personnelworking on power lines.
Heavy Equipment
Unbalanced weight.Improper lifting can cause severeinjury or death and equipmentdamage.
Do not use lifting eyes.Lift the generator set using lifting barsinserted through the lifting holes onthe skid.
WARNING
Hot Parts
Hot engine and exhaust system.Can cause severe injury or death.
Do not work on the generator set untilit cools.
WARNING
Servicing the exhaust system. Hotparts can cause severe injury ordeath. Do not touch hot engine parts.The engine and exhaust systemcomponents become extremely hot
during operation.
Servicing the engine heater. Hotparts can cause minor personalinjuryorpropertydamage. Install theheater before connecting it to power.
Operating theheater before installationcan cause burns and componentdamage. Disconnect power to theheater and allow it to cool beforeservicing the heater or nearby parts.
Notice
NOTICE
Canadian installations only. Forstandby service connect the output ofthe generator set to a suitably ratedtransfer switch in accordance withCanadian Electrical Code, Part 1.
TP-6803 12/11 9
Introduction
This manual provides installation instructions for
Residential/Commercial Model 14/20RESA or
14/20RESAL generator sets. See Figure 1. Refer to
TP-6804, OperationManual, for generator set operation
and maintenance instructions.
The generator set is approved for use in stationary
applications in locations served by a reliable utility
power source.
Have an authorized distributor/dealer install the
generator set outdoors according to the instructions in
this manual. The generator set installation must comply
with the National Electrical Code (NEC) and local code
requirements. Do not install this generator set indoors.
Information in this publication represents data available
at the time of print. Kohler Co. reserves the right to
change this publication and the products represented
without notice and without any obligation or liability
whatsoever.
Read this manual and carefully follow all procedures
and safety precautions to ensure proper equipment
operation and to avoid bodily injury. Read and follow the
Safety Precautions and Instructions section at the
beginning of this manual.
zaa28533
Figure 1 14/20RESA/RESAL Generator Set
List of Related Literature
Figure 2 identifies related literature available for the
generator sets covered in this manual. Only trained and
qualified personnel should install or service the
generator set.
Literature Type Part Number
OperationManual, 14/20RESA/RESAL
Generator Set TP-6804
Operation/Installation Manual, Model
RXT Automatic Transfer Switch TP-6807
Service Manual,
14/20RESA/RESAL Generator Set TP-6735
Operation Manual, OnCue Software TP-6796
Operation/Installation Manual,
Model RDT Transfer Switch TP-6345
Installation Manual, Model RSB
Transfer Switch TP-6486
Operation Manual, Model RSB
Transfer Switch TP-6487
Installation Instructions, Load Control
Module (LCM) TT-1574
Installation Instructions,
Programmable Interface Module (PIM) TT-1584
Figure 2 Related Literature
Startup and Registration
When the generator set is installed, complete the
startup and installation checklists supplied with the
startup notification form. Complete and sign the startup
notification form and register the unit using the Kohler
online Warranty Processing System.
TP-6803 12/1110
Service Assistance
For professional advice on generator set power
requirements and conscientious service, please contact
your nearest Kohler distributor or dealer.
Consult the Yellow Pages under the heading
Generators—Electric.
Visit the Kohler Power Systems website at
KohlerPower.com.
Look at the labels and stickers on your Kohler product
or review the appropriate literature or documents
included with the product.
Call toll free in the US and Canada 1-800-544-2444.
Outside the US andCanada, call the nearest regional
office.
Headquarters Europe, Middle East, Africa
(EMEA)
Kohler Power Systems
3 rue de Brennus
93200 Saint Denis
France
Phone: (33) 1 49 178300
Fax: (33) 1 49 178301
Asia Pacific
Power Systems Asia Pacific Regional Office
Singapore, Republic of Singapore
Phone: (65) 6264-6422
Fax: (65) 6264-6455
China
North China Regional Office, Beijing
Phone: (86) 10 6518 7950
(86) 10 6518 7951
(86) 10 6518 7952
Fax: (86) 10 6518 7955
East China Regional Office, Shanghai
Phone: (86) 21 6288 0500
Fax: (86) 21 6288 0550
India, Bangladesh, Sri Lanka
India Regional Office
Bangalore, India
Phone: (91) 80 3366208
(91) 80 3366231
Fax: (91) 80 3315972
Japan, Korea
North Asia Regional Office
Tokyo, Japan
Phone: (813) 3440-4515
Fax: (813) 3440-2727
Latin America
Latin America Regional Office
Lakeland, Florida, USA
Phone: (863) 619-7568
Fax: (863) 701-7131
TP-6803 12/11 11Section 1 Installation
Section 1 Installation
1.1 Introduction
Hazardous voltage.Will cause severe injury or death.
This equipmentmust be installed andserviced by qualified electrical
personnel.
DANGER
Have the generator set installed by an authorizedKohler
distributor/dealer or authorized representative. Install
the equipment in compliance with the National Electrical
Code (NEC) and local codes. For Canadian
installations, refer to the Canadian Electrical Code
(CEC).
The generator set must be installed outdoors. The
exhaust systems on enclosed units are designed for
outdoor installation only.
Note: DO NOT install these generator sets inside a
building.
Note: Install carbon monoxide (CO) detector(s) on
each level of any building adjacent to a generator
set. Locate the detectors to adequately warn the
building’s occupants of the presence of carbon
monoxide.
Obtain a building permit and contact your local utility
companies to mark the locations of underground pipes
and cables.
Read and follow the safety precautions in this manual
and observe the decals on the equipment. Refer to the
diagrams and drawings in this manual for dimensions
and electrical connections during the installation
procedure. Read the entire installation procedure and
obtain the accessories and tools needed before
beginning installation. Perform the steps in the order
shown.
To install optional accessories, follow the instructions
provided with each kit.
Carbon monoxide.Can cause severe nausea,fainting, or death.
The exhaust system must be
leakproof and routinely inspected.
WARNING
Generator set operation. Carbon monoxide can causesevere nausea, fainting, or death. Carbon monoxide is anodorless, colorless, tasteless, nonirritating gas that can causedeath if inhaled for evena short time. Avoid breathingexhaustfumes when working on or near the generator set. Never
operate the generator set inside a building. Never operate thegenerator set where exhaust gas could seep inside or bedrawn intoapotentiallyoccupiedbuilding throughwindows,airintake vents, or other openings.
Carbon monoxide detectors. Carbon monoxide can
cause severe nausea, fainting, or death. Install carbonmonoxide detectors on each level of any building adjacent tothegenerator set. Locate thedetectors toadequatelywarn thebuilding’s occupants of the presence of carbon monoxide.Keep the detectors operational at all times. Periodically testand replace the carbon monoxide detectors according to the
manufacturer’s instructions.
1.2 Lifting
Unbalanced weight.Improper lifting can cause severeinjury or death and equipmentdamage.
Do not use lifting eyes.Lift the generator set using lifting barsinserted through the lifting holes onthe skid.
WARNING
Model Weight, kg (lb.)
14RESA/RESAL 186 (410)
20RESA/RESAL 227 (500)
Figure 1-1 Approximate Weights
TP-6803 12/1112 Section 1 Installation
Approximate generator set weights are shown in
Figure 1-1. Use lifting bars inserted through the holes in
the skid to lift the unit. See the dimension drawings on
the following pages for lifting hole locations.
1.3 Generator Set Inspection
Complete a thorough inspection of the generator set.
Check for the following:
1. Inspect the generator set for loose or damaged
parts or wires. Repair or tighten any loose parts
before installation.
2. Check the engine oil. Fill, if necessary, with the
recommended viscosity and grade of oil. Use
synthetic oil, API (American Petroleum Institute)
Service Class SG or higher. See TP-6804,
Operation Manual, for additional information.
1.4 Location and Mounting
Install the generator set outdoors. Choose a location
that is at least 0.9 m (3 ft.) from any building or structure
and near the incoming gas service. Allow a minimum of
2.4 m (8 ft.) clearance beyond the exhaust end of the
generator set. Locate the generator set so that the hot
exhaust does not blow on plants or other combustible
materials. Do not install the generator set where
exhaust gas could accumulate and seep inside or be
drawn into a potentially occupied building.
Notice
DO NOT locate the generator set near patios,
decks, play areas, or animal shelters. Keep items
such as lawn furniture, toys, sports equipment,
and all combustible materials away from the
generator set exhaust outlet.
Remind family members, children, and visitors to
use caution near the generator set. Generator
sets connected to automatic transfer switches
start automatically during exercise periods and
power outages. Some generator set components
become hot when the generator set is running and
remain hot for a time after the generator set shuts
down.
1.4.1 Mounting Area
The generator set is shipped on an engineered
composite mounting pad. Prepare a flat, level mounting
area covered with a weed barrier and gravel or a
concrete mounting pad. Set the composite mounting
pad directly on the gravel or concrete.
Do not install the mounting pad directly on grass, wood,
or other combustible materials. Clear all combustible
materials, including plants and shrubs, building
materials, and lawn furniture, froman area at least 2.4 m
(8 ft.) beyond the exhaust end of the generator set. See
Figure 1-7 in Section 1.5.
1.4.2 Exhaust Requirements
Figure 1-2 gives the exhaust temperature at rated load.
The engine exhaust mixes with the generator set
cooling air at the exhaust end of the enclosure. Mount
the generator set so that the hot exhaust does not blow
on plants or other combustible materials. Maintain the
clearances shown in Figure 1-7 in Section 1.5.
ExhaustTemperature,
C (F)
Exhaust gas exiting the enclosureat rated kW, C (F) 260 (500)
Figure 1-2 Exhaust Flow and Temperature
The generator set requires correct air flow for cooling
and combustion. The inlet and outlet openings in the
sound enclosure provide the cooling and combustion
air. Figure 1-3 shows the locations of the cooling air
intake and exhaust vents. Inspect the air inlet and outlet
openings inside and outside the housing to ensure that
the air flow is not blocked.
The generator set is designed to operate with all
enclosure panels and internal baffling in place. If during
installation, maintenance or repair the unit must be
operated without the complete enclosure and baffling as
shipped from the factorymake sure the exhaust panel is
removed as well.
tp6733
1. Air intake
2. Exhaust outlet
12
1
REAR VIEW
Figure 1-3 Cooling Air Intake and Exhaust
1.5 Dimension Drawings
See the dimension drawings in Figure 1-4 through
Figure 1-7 for the generator set dimensions, fuel and
electric inlet locations, and recommended clearance.
TP-6803 12/11 13Section 1 Installation
Figure 1-4 Dimension Drawing ADV-8424, Sheet 1
TP-6803 12/1114 Section 1 Installation
Figure 1-5 Dimension Drawing ADV-8424, Sheet 2
TP-6803 12/11 15Section 1 Installation
Figure 1-6 Dimension Drawing ADV-8424, Sheet 3
TP-6803 12/1116 Section 1 Installation
Figure 1-7 Dimension Drawing ADV-8424, Sheet 4
TP-6803 12/11 17Section 1 Installation
1.6 Fuel Requirements
The generator set operates using natural gas or LP
vapor fuel. The generator set is EPA-certified for both
natural gas and LP vapor fuels.
The fuel system installation must comply with the NEC
and local codes.
1.6.1 Fuel Supply
Because of variable climates and geographical
considerations, contact the local fuel supplier for fuel
system planning and installation. Figure 1-8 lists the
recommended fuel ratings and other fuel supply
information for natural gas and LP vapor fuels.
Fuel typeNaturalGas
LPVapor
Fuel supply inlet 1/2 NPT
Fuel supply pressure,kPa (in. H2O)
1.3--2.7(5--11)
1.7--2.7(7--11)
Fuel flow rate, maximum, Btu/hr.:
14RESA/RESAL 193,000 203,000
20RESA/RESAL 281,000 340,000
Nominal Fuel Rating, Btu/ft.3
Natural gas 1000
LP vapor 2500
Figure 1-8 Fuel Supply
Verify that the output pressure from the primary gas
utility pressure regulator is as shown in Figure 1-8 and
that the utility gas meter flow rate is sufficient to supply
the generator set at rated load plus all other
gas-consuming appliances. For LP tanks, verify that the
output pressure is as shown in Figure 1-8. See
Figure 1-10 for fuel consumption. Contact the fuel
supplier for flow rate information or a gas meter
upgrade.
The dimension drawing in Section 1.5 shows the
location of the fuel inlet connection. Use flexible
sections to prevent fuel line breakage caused by
vibration. Hold the fuel solenoid valve with a wrench
when tightening the fuel connections. Protect all fuel
lines from machinery or equipment contact, adverse
weather conditions, and environmental damage.
1.6.2 Fuel Pipe Size
Ensure that the fuel pipe size and length meet the
specifications in Figure 1-9. Measure the pipe length
from the primary gas pressure regulator to the pipe
connection on the generator set fuel inlet. Add 2.4 m
(8 ft.) to the measured length for each 90 degree elbow.
Compare the total pipe length with the chart in
Figure 1-9 to find the required pipe size.
Contact local LP provider for LP installation information.
Minimum Gas Pipe Size Recommendation, in. NPT
PipeLength,m (ft.)
14RESA/RESAL 20RESA/RESAL
NaturalGas
(193,000Btu/hr.)
LP Vapor(203,000Btu/hr.)
NaturalGas
(281,000Btu/hr.)
LP Vapor(340,000Btu/hr.)
8 (25) 3/4 3/4 1 3/4
15 (50) 1 3/4 1 1
30 (100) 1 1 1 1/4 1
46 (150) 1 1/4 1 1 1/4 1 1/4
61 (200) 1 1/4 1 1 1/4 1 1/4
Figure 1-9 Fuel Pipe Size Recommendations
Fuel Type % Load
Fuel Consumption, m3/hr. (cfh)
14RESA/RESAL 20RESA/RESAL
60 Hz 50 Hz 60 Hz 50 Hz
Natural Gas
100% 5.4 (193) 4.9 (175) 8.0 (281) 6.4 (225)
75% 4.7 (163) 4.2 (148) 6.9 (243) 5.4 (189)
50% 3.5 (124) 3.1 (108) 4.6 (161) 3.9 (139)
25% 2.6 (93) 2.4 (84) 3.6 (127) 2.9 (103)
LP Vapor
100% 2.3 (81) 2.1 (74) 3.9 (136) 2.9 (102)
75% 2.1 (75) 1.9 (68) 3.1 (109) 2.4 (85)
50% 1.8 (60) 1.5 (53) 2.3 (82) 1.8 (63)
25% 1.2 (45) 1.1 (40) 1.7 (59) 1.3 (47)
LP vapor conversion factors:8.58 ft.3 = 1 lb.0.535 m3 = 1 kg36.39 ft.3 = 1 gal.
Nominal fuel rating:Natural gas: 37 MJ/m3 (1000 Btu/ft.3)LP vapor: 93 MJ/m3 (2500 Btu/ft.3)
Figure 1-10 Fuel Consumption
TP-6803 12/1118 Section 1 Installation
1.7 Fuel Conversion
The multi-fuel system allows conversion from natural
gas to LP vapor (or vice-versa) in the field while
maintaining emissions-standard compliance. A trained
technician or an authorized distributor/dealer can
convert the fuel system.
Figure 1-11 shows the fuel system components.
Accidental starting.Can cause severe injury or death.
Disconnect the battery cables beforeworking on the generator set.
Remove the negative (--) lead firstwhen disconnecting the battery.Reconnect the negative (--) lead lastwhen reconnecting the battery.
WARNING
Disabling the generator set. Accidental starting cancause severe injury or death. Before working on thegenerator set or connected equipment, disable the generatorset as follows: (1) Move thegenerator setmaster switch to the
OFFposition. (2) Disconnect thepower to thebattery charger.(3) Remove the battery cables, negative (--) lead first.Reconnect the negative (--) lead last when reconnecting thebattery. Follow these precautions to prevent starting of thegenerator set by an automatic transfer switch, remotestart/stop switch, or engine start command from a remote
computer.
Explosive fuel vapors.Can cause severe injury or death.
Use extreme care when handling,storing, and using fuels.
WARNING
GM80110
1. Fuel Regulator
2. Fuel block (not shown; see Figure 1-12) or LP orifice location(see Figure 1-15)
3. Fuel solenoid valve and digital spark advance ignition (DSAI)
leads4. Fuel inlet, 1/2 in. NPT female
DSAI Lead Connection
1
2
3
4
Figure 1-11 Fuel System
TP-6803 12/11 19Section 1 Installation
1.7.1 Fuel Conversion, 14RESA/RESAL
Two fuel connections on the fuel block allow field-
conversion between natural gas and LP vapor. The fuel
metering valves are factory-set and sealed to comply
with applicable emission standards and to provide the
best possible hot and cold starting.
Note: Do not adjust the factory-sealed fuel-metering
adjustments on the fuel block. Changing the fuel-
metering adjustmentsmay violate federal or state
laws.
Use the following procedure to convert from natural gas
(NG) to LP vapor. The procedure includes moving the
fuel connection from the natural gas to the LP port,
plugging the natural gas port, and disconnecting the
leads for the digital spark advance ignition (DSAI). See
Figure 1-11 for the fuel system component locations.
Procedure to convert from NG to LP,
14RESA/RESAL
1. Press the OFF button on the generator set
controller.
2. Disconnect the power to the battery charger.
3. Disconnect the generator set engine starting
battery, negative (--) lead first.
4. Turn off the fuel supply.
5. Remove the hose clamp and fuel hose from the
hose fitting in the fuel block. See Figure 1-12.
6. Remove the hose fitting from the natural gas outlet
port in the fuel block. See Figure 1-12.
7. Remove the plug from the LP port in the fuel block.
See Figure 1-12.
8. Clean the plug with a dry cloth or brush, apply fresh
pipe sealant, and install the plug into the natural
gas outlet port.
9. Clean the hose fitting with a dry cloth or brush,
apply fresh pipe sealant to the threads, and install
the fitting into the LP port.
Note: Do not adjust the fuel metering valves.
10. Slide the hose onto the hose fitting and secure it
with the clamp.
11. Disconnect the DSAI leads for LP. The DSAI leads
are located near the fuel solenoid valve. See
Figure 1-11.
12. Connect and turn on the new fuel supply.
5
GM84143
1. Fuel block
2. Fuel metering valves—factory-sealed, do not adjust3. Fuel inlet, 1/2 in. NPT
4. Hose fitting
5. Plug
1
2
3
4Natural gassetup shown
Figure 1-12 Fuel Block, 14RESA/RESAL
13. Reconnect the generator set engine starting
battery leads, negative (--) lead last.
14. Reconnect power to the battery charger.
15. Start the generator set by pressing the RUN button
on the generator set controller.
16. Check for leaks using a gas leak detector.
17. Run the generator set and check the operation.
18. Press theOFF button to to shut down the generator
set.
Conversion from LP to Natural Gas
To convert from LP vapor to natural gas, follow the fuel
conversion procedure above, moving the hose fitting to
the natural gas port and plugging the LP port. Connect
the DSAI leads for natural gas. See Figure 1-13.
Fuel DSAI Leads 65 and N
Natural Gas Connect lead 65 to N
LP Disconnect
Figure 1-13 DSAI Connection
TP-6803 12/1120 Section 1 Installation
1.7.2 Fuel Conversion, 20RESA/RESAL
For LP vapor fuel, an orifice is used in the fuel line. The
unit is typically shipped set up for natural gas, with the
loose orifice tied near the fuel solenoid valve. To convert
to LP vapor, install the orifice and disconnect the spark
advance leads as described below. See Figure 1-15 for
the fuel system component locations.
Procedure to Convert from NG to LP,
20RESA/RESAL
1. Press the OFF button on the generator set
controller.
2. Disconnect the power to the battery charger.
3. Disconnect the generator set engine starting
battery, negative (--) lead first.
4. Turn off the fuel supply.
5. Remove the hose clamp and fuel hose from the
hose fitting. See Figure 1-15.
6. Insert the orifice into the hose fitting. See
Figure 1-15.
7. Slide the hose onto the hose fitting and secure it
with the clamp.
8. Disconnect digital spark-advance module (DSAI)
leads 65 andN5 for LP. TheDSAI leads are located
near the fuel solenoid valve. See Figure 1-11.
9. Connect and turn on the new fuel supply.
10. Reconnect the generator set engine starting
battery leads, negative (--) lead last.
11. Reconnect power to the battery charger.
12. Start the generator set by pressing the RUN button
on the generator set controller.
13. Check for leaks using a gas leak detector.
14. Run the generator set and check the operation.
15. Press the OFF button to shut down the generator
set.
Conversion from LP to Natural Gas
To convert from LP vapor to natural gas, remove the fuel
orifice and connect the DSAI leads together.
Fuel DSAI Leads 65 and N
Natural Gas Connect lead 65 to N
LP Disconnect
Figure 1-14 DSAI Connections
Rating
Converting the fuel will change the generator set rating.
See the generator set specification sheet for ratingswith
natural gas and LP. Order a new nameplate with the
updated rating and fuel information from an authorized
distributor/dealer, if necessary. Provide the following
information from the original nameplate:
Model Number kVA
Spec Number Amps
Serial Number Volts
Fuel (original and new) Hz
kW
1. LP orifice
2. Hose fitting3. Regulator
4. Fuel inlet, 1/2 in. NPT female
GM84143
4
3
1
Note: LP setup
shown
2
Figure 1-15 Fuel Regulator and LP Orifice,
20RESA/RESAL
TP-6803 12/11 21Section 1 Installation
1.8 Electrical Connections
Hazardous voltage.Will cause severe injury or death.
This equipmentmust be installed andserviced by qualified electrical
personnel.
DANGER
Grounding electrical equipment. Hazardous voltage cancause severe injury or death. Electrocution is possiblewhenever electricity is present. Ensure you comply with all
applicable codes and standards. Electrically ground thegenerator set, transfer switch, and related equipment andelectrical circuits. Turn off the main circuit breakers of allpower sourcesbefore servicing theequipment. Never contactelectrical leadsor applianceswhenstanding inwater or onwetground because these conditions increase the risk of
electrocution.
Electrical backfeed to the utility. Hazardous backfeedvoltage can cause severe injury or death. Install a transferswitch instandbypower installations toprevent theconnectionof standby and other sources of power. Electrical backfeedinto a utility electrical system can cause severe injury or death
to utility personnel working on power lines.
NOTICE
Canadian installations only. For standby service connect
the output of the generator set to a suitably rated transferswitch in accordance with Canadian Electrical Code, Part 1.
Have an authorized distributor/dealer or a licensed
electrician make the following electrical connections.
The electrical installation must comply with the National
Electrical Code (NEC) class 1 wire designation and all
applicable local codes. Canadian installations must
comply with the Canadian Electrical Code (CEC) and
applicable local codes.
1.8.1 Grounding
Ground the generator set. The grounding method must
comply with NEC and local codes. Connect the
grounding strap to the generator set ground lug,
terminal GND inside the controller compartment.
Generator sets are shipped with the generator neutral
bonded (connected) to the generator ground in the
junction box. The requirement for having a bonded
(grounded) neutral or ungrounded neutral is determined
by the type of installation. At installation, the neutral can
be grounded at the generator set or lifted from the
ground stud and isolated if the installation requires an
ungrounded neutral connection at the generator. The
generator set will operate properly with the neutral either
bonded to ground or isolated from ground at the
generator.
Various regulations and site configurations including the
National Electrical Code (NEC), local codes, and the
type of transfer switch used in the application determine
the grounding of the neutral at the generator. NEC
Section 250 is one example that has a very good
explanation of the neutral grounding requirements for
generators.
1.8.2 Electrical Lead Entry
Drill or punch holes in the enclosure for the electrical
conduit in the locations shown in Figure 1-16. A
full-scale dimensioned template for the hole locations is
printed in Appendix B. See page 41.
1
ADV--7876
1. 1/2 NPT female fuel inlet
2. ATS signal electrical lead entry point3. Utility voltage electrical lead entry point
3
2
Note: See Appendix B for a full-scale template
with dimensions.
Figure 1-16 Electrical Lead Entry Locations
1.8.3 Field-Connection Terminal Block
The generator set is equipped with a field-connection
terminal block located in the air inlet area near the
junction box. Leads have been factory-installed from
the junction box to the terminal block for easy field
wiring.
See the dimension drawing in Section 1.5 for the
terminal block location. See Figure 1-17 for terminal
block details. Refer to the terminal block decal for
connections and cable sizes. Also see Section 2,Wiring
Diagrams.
The National Electrical Codeis a registered trademark of the National Fire Protection Association, Inc.
TP-6803 12/1122 Section 1 Installation
Route AC leads through flexible conduit. Ensure that
the leads and conduit do not interfere with the operation
of the generator set or obstruct the service areas. Route
low-voltage communication leads through separate
conduit.
Procedure
1. Drill holes for the conduit fittings. See Figure 1-16
and Appendix B for the recommended electrical
inlet locations. Feed the cables through the
openings.
2. Connect the leads from the transfer switch
emergency source lugs to the L1 and L2
connections on the generator set terminal block.
3. Connect the neutral (L0) and ground (GRD) leads
from the ATS and the main panel to the
corresponding connection points on the terminal
block. See Section 1.8.1, Grounding.
4. Connect utility power leads to the terminal block
connections labelled Utility. Connect to a circuit
that is supplied by the utility source and backed up
by the generator. The power source must be GFCI
protected. See Section 1.8.4 for more information
about the utility power requirement.
5. For connection of optional transfer switches, the
programmable interface module (PIM), and/or a
load control module (LCM), see Section 1.8.5.
6. If the OnCue Home Generator Management
System will be used with the generator set, run
category 5E network cable from the generator set
to the customer’s router or modem.
Note: Installation of the network cable at the time
of generator set installation is highly
recommended. Installing the Ethernet cable
nowwill make connectionmuch easier if you
choose to add OnCue later.
a. Route the network cable with other low-voltage
signal wiring (for example, the RBUS
communication leads or engine start leads to
the transfer switch), in separate conduit from
theAC load leads. If the network cable is longer
than 100 meters (328 ft.), use a repeater or
switch.
b. Use an RJ45 inline coupler to connect the
Ethernet cable to the cable in the customer
connection box. See Figure 1-17. The inline
coupler is included with the OnCue kit.
GM84094
1. Ethernet cable for optional OnCue connection
2. AC load connections3. 120VAC utility power connections
4. Low voltage communication and engine start connections
5. Ground connection for communication cable shield.
2
43
5
1
Figure 1-17 Electrical Connections
1.8.4 Power Supply
120 VAC, 60 Hz power must be supplied to the
generator set location for the battery charger (integral to
the RDC2 and DC2 controllers) and the optional
accessories shown in Figure 1-18. The power source
must be GFCI protected. The power to the accessories
must be available at all times, i.e. the circuit must be
powered by the utility source and backed up by the
generator.
Be sure to disconnect power at the distribution panel
beforemaking the connections. Connect power leads to
the utility power connection points on the terminal block.
See Section 1.8.3 and the wiring diagrams in Section 2
for connection details.
Equipment
Power Requirement, Max.
Watts Amps Volts
Battery charger (standard,integral to RDC2 controller)
120 1 120
Carburetor heater (optional) 37 0.33120
Battery heater (optional) 110 0.92
Fuel regulator heater(20RESA/RESAL only)
60 0.50 120
Figure 1-18 Power Requirements
TP-6803 12/11 23Section 1 Installation
1.8.5 Transfer Switch Connection
Connect the ATS or remote start/stop switch. Connect
the load leads from the generator set to the Emergency
source lugs on the ATS. Route low-voltage
communication leads through separate conduit. All
connectionsmust comply with applicable state and local
codes.
Note: Do not use the Kohler Model RRT transfer
switch with the 14/20RESA or 14/20RESAL
generator set.
Communication connections for a Kohler
Model RXT transfer switch:
See Figure 1-19. Use Belden #9402 or equivalent
20 AWG shielded, twisted-pair cable to connect P10-1
throughP10-4 on the transfer switch interfacemodule to
the generator set terminal block TB1 connections A, B,
PWR, and COM.
See Section 1.8.6 for the maximum cable length.
Note: Connections 3 and 4 on the generator set are not
used with the Model RXT transfer switch.
Engine start connection for other transfer
switches or a remote start/stop switch:
Connect the engine start leads from the transfer switch
or remote start switch to terminals 3 and 4 on the
terminal block. See Figure 1-20. Route the engine start
leads through separate conduit from the AC power and
load leads.
1. Communication cable Belden #9402 or equivalent 20 AWG shielded, twisted-pair cable
Interface Board on theModel RXT Transfer Switch
Note: Generator set terminal block (TB1) connections 3 and 4 are NOT USED with the Model RXT ATS.
Generator Set
COM
PWR
B
A
Connect one end of each cable shield toGROUND at the generator set.
Leave one end of each cable shield disconnected.If accessory modules (PIM or LCM) are connected,see Section 1.8.6.
RXT
COM
PWR
B
A
1
GND
A
B
COM
PWR
3
4
TB1
Generator Set Terminal Block TB1.See Figure 1-6 for location. Check thedecal on the generator set for terminal blockconnections.
RBUS
12 VDC
Figure 1-19 Model RXT Transfer Switch Communication Connection to Generator Set Terminal Block
TP-6803 12/1124 Section 1 Installation
tp6809
1. Engine start leads 3 and 4. See the ATS manual for cable size specifications.
Generator Set
ATSModels RDTor RSB
1
1
A
B
COM
PWR
3
4
TB1
Generator Set Terminal Block TB1.See Figure 1-6 for location. Check thedecal on the generator set for terminal blockconnections.
Figure 1-20 Engine Start Connections with Transfer Switch Models RDT or RSB
1.8.6 System Connections with
Accessory Modules
See Figure 1-22 through Figure 1-26 for connection
options with up to three accessory modules. Accessory
modules can include one Model RXT transfer switch,
one programmable interface module (PIM), and/or one
load control module (LCM).
See Figure 1-21 for themaximum total cable length with
1, 2, or 3 accessory modules per cable run.
Use Belden #9402 (4-conductor) or equivalent 20
AWG shielded, twisted-pair cable. Note the shield
connections shown in Figure 1-22.
Belden #8723 (2-conductor) shielded twisted-pair
cable can be used for connections A and B, and
#12--14AWGwire can be used for theCOMandPWR
connections. The maximum total cable length is the
value shown for #12 or #14 AWGwire in Figure 1-21.
Cable (TB1--PWR and COM)
Maximum length per run, meters (ft.)
Number of Modules (ATS, PIM, and LCM) per Run
1 Module 2 Modules 3 Modules
Belden #9402 or equivalent 20AWG 61 (200) 31 (100) 21 (67)
14 AWG 152 (500) 152 (500) 122 (400)
12 AWG 152 (500) 152 (500) 152 (500)
Figure 1-21 Total Cable Lengths with Accessory Modules Connected in Series (daisy-chain)
TP-6803 12/11 25Section 1 Installation
PIM
LCM
Generator Set
Generator Set Terminal Block TB1.See Figure 1-6 for location. Check thedecal on the generator set for terminal blockconnections.
COM
COM
PWR
COM
PWR
PWR
B
A
B
A
B
A
COM
PWR
B
A
Connect one end of each cable shieldto GROUND at the generator set.
Leave one end of each cable shielddisconnected at the last device.
RXT1
COM
PWR
B
A
COM
PWR
B
A
Connect shields togetheras shown.
1. Communication cable Belden #9402 or equivalent 20 AWG shielded, twisted-pair cable
GND
Note: See Figure 1-21 for maximum total cable length
per run (1 run shown).
A
B
COM
PWR
3
4
TB1
RBUS
12 VDC
Figure 1-22 Accessory Module Communication Connection Details
TP-6803 12/1126 Section 1 Installation
1. Belden #9402 or equivalent, 20 AWG shielded cable with 2 twisted pairs
tp6809
PIM
LCM
RXT ATS
Generator Set
NOTES:
SeeFigure 1-6 for terminal block location on generator set. Check
the decal on the generator set for terminal block connections.
See Figure 1-21 for maximum total cable length per run (3 runs
with 1 module each shown).
See Figure 1-22 for communication connection detail (A and B,
PWR and COM).
Use splices or wire nuts to collect multiple leads for connection to
the generator set terminal block. See Figure 1-24.
TB1
1
1
1
Figure 1-23 Accessory Module Connections (three cable runs with one module each)
1
tp68091. Splice
Generator Set
Generator Set Terminal Block TB1.See Figure 1-6 for location. Check the decal onthe generator set for terminal block connections.
COM
PWR
B
A
Connect all of the shield leads on thisend to GROUND at the generator set.
COM
PWR
B
A
TO GROUND
9402 CABLE
9402 CABLE
A
B
COM
PWR
3
4
TB1
RBUS
12 VDC
Figure 1-24 Multiple Connections to the Generator Set
TP-6803 12/11 27Section 1 Installation
tp68091. Belden #9402 or equivalent, 20 AWG shielded cable with 2 twisted pairs
PIM
LCM
RXT ATS1
1
1
Generator Set
TB1
NOTES:
See Figure 1-6 for terminal block location on generator set.
Check the decal on the generator set for terminal block
connections.
See Figure 1-21 for maximum total cable length with12 or 14 AWG wire.
See Figure 1-22 for communication connection (A and B, PWRand COM) detail. Connect the cable shield to ground at the
generator set.
Figure 1-25 Accessory Module Connections (two cable runs with one and two modules shown)
TP-6803 12/1128 Section 1 Installation
tp6809
1. Belden #9402 or equivalent, 20 AWG shielded cable (use one pair); or Belden 8723 or equivalent 20 AWG shielded cable
2. 12--14 AWG wire
PIM
LCM
RXT ATS
1
1
1
Generator Set A and BPWRCOM 2
2
22
2
2
A and B
A and B
A and B
PWRCOM
PWRCOM
PWRCOM
NOTES:
See Figure 1-6 for terminal block location on generator set. Check the
decal on the generator set for terminal block connections.
SeeFigure 1-21 formaximumtotal cable lengthwith12or 14 AWGwire.(1 run with 3 modules shown).
See Figure 1-22 for communication connection (A and B) detail.
Connect the cable shield to ground at the generator set.
Figure 1-26 Accessory Module Connections with 12--14 AWG Power Leads (one cable run with three modules
shown)
TP-6803 12/11 29Section 1 Installation
1.8.7 Connect Optional Programmable
Interface Module (PIM)
The optional programmable interface module (PIM)
provides two programmable inputs and six dry contact
outputs, four of which are programmable. See TT-1584
for PIM installation and connection instructions.
1. Output connections (3 terminal blocks, 6 outputs)
2. Input connections (2 inputs)3. Rbus communication connection to generator set terminal
block TB1
2
ADV-8199
1
3
1
1
Figure 1-27 Optional PIM
The default settings for the inputs and outputs are
shown in Figure 1-28. To change the input and output
settings, use a personal computer running Kohler
SiteTech software. See TP-6701, SiteTech Software
Operation Manual, for instructions.
A personal computer running Kohler OnCue
software can be used to actively control PIM outputs.
See the OnCue Software Operation Manual for
instructions.
PIM Connection Factory Default Setting
Input 1 None
Input 2 None
Output 1 (Relay 1) Run
Output 2 (Relay 2) Common Fault
Output 3 (Relay 3) Low Battery Voltage (Program-
mable)
Output 4 (Relay 4) Not in Auto (Programmable)
Output 5 (Relay 5) Cooldown (Programmable)
Output 6 (Relay 6) Normal Source Failure (Program-
mable)
Figure 1-28 PIM Inputs and Outputs
1.8.8 Connect Optional Load Control
Module (LCM)
The optional load control module (LCM) provides an
automatic load management system to comply with
Section 702.5 of NEC 2008. Refer to TT-1574, provided
with the LCM, for installation and connection
instructions. The installer is responsible for ensuring
that the power system installation complies with all
applicable state and local codes.
The load control module automatically manages up to
six residential loads. Four power relays are provided for
management of non-essential secondary loads, and
two relays are available to control two independent air
conditioner loads.
Two kits are available with either a prewired harness for
load relay connection, or a terminal block. The prewired
harness requires installation of the LCM within 2 feet of
the distribution panel.
Figure 1-29 Optional Load Control Module (LCM)
(shown with optional pre-wired harness)
TP-6803 12/1130 Section 1 Installation
1.9 Battery
Sulfuric acid in batteries.Can cause severe injury or death.
Wear protective goggles andclothing. Battery acid may cause
blindness and burn skin.
WARNING
Explosion.Can cause severe injury or death.Relays in the battery chargercause arcs or sparks.
Locate the battery in awell-ventilatedarea. Isolate thebattery charger fromexplosive fumes.
WARNING
Battery electrolyte is a diluted sulfuric acid. Battery acidcan cause severe injury or death. Battery acid can causeblindness and burn skin. Always wear splashproof safety
goggles, rubber gloves, and boots when servicing the battery.Do not open a sealed battery or mutilate the battery case. Ifbattery acid splashes in the eyes or on the skin, immediatelyflush the affected area for 15 minutes with large quantities ofclean water. Seek immediate medical aid in the case of eyecontact. Never addacid to a battery after placing the battery in
service, as this may result in hazardous spattering of batteryacid.
Battery acid cleanup. Battery acid can cause severeinjury or death. Battery acid is electrically conductive andcorrosive. Add 500 g (1 lb.) of bicarbonate of soda (bakingsoda) to a container with 4 L (1 gal.) of water and mix the
neutralizing solution. Pour the neutralizing solution on thespilled battery acid and continue to add the neutralizingsolution to the spilled battery acid until all evidence of achemical reaction (foaming) has ceased. Flush the resultingliquid with water and dry the area.
Battery gases. Explosion can cause severe injury ordeath. Battery gases can cause an explosion. Do not smokeor permit flames or sparks to occur near a battery at any time,particularlywhen it is charging. Donot disposeof abattery ina
fire. To prevent burns and sparks that could cause anexplosion, avoid touching the battery terminals with tools orother metal objects. Remove all jewelry before servicing theequipment. Discharge static electricity from your body beforetouching batteries by first touching a grounded metal surfaceaway from the battery. To avoid sparks, do not disturb the
battery charger connections while the battery is charging.Always turn the battery charger off before disconnecting thebattery connections. Ventilate the compartments containingbatteries to prevent accumulation of explosive gases.
Battery short circuits. Explosion can cause severe injuryor death. Short circuits can cause bodily injury and/or
equipment damage. Disconnect the battery before generatorset installation or maintenance. Remove all jewelry beforeservicing the equipment. Use tools with insulated handles.Remove the negative (--) lead first when disconnecting thebattery. Reconnect the negative (--) lead last whenreconnecting the battery. Never connect the negative (--)
battery cable to the positive (+) connection terminal of thestarter solenoid. Do not test the battery condition by shortingthe terminals together.
Connecting the battery and the battery charger.Hazardous voltage can cause severe injury or death.Reconnect the battery correctly, positive to positive andnegative to negative, to avoid electrical shock and damage to
the battery charger and battery(ies). Have a qualifiedelectrician install the battery(ies).
Use a 12-volt group 51 battery with a minimum rating of
500 cold cranking amps at 0F. The generator set uses
a negative ground with a 12-volt engine electrical
system. See Figure 1-30 for battery connections. Make
sure that the battery is correctly connected and the
terminals are tight.
Note: The generator set will not start and circuit board
damage may occur if the battery is connected in
reverse.
See the dimension drawing in Section 1.5 for the engine
starting battery location on the air intake side of the
generator set. Standard battery cables provide easy
connection to the battery.
EZ-273000-J
1 2
1. To positive (+) terminal on starter solenoid.
2. To ground (--) terminal on or near starter motor.
Figure 1-30 Typical Battery Connection
TP-6803 12/11 31Section 1 Installation
Use the following procedure to install and connect the
battery.
Battery Installation Procedure
1. Ensure that the starting battery is fully charged
before placing the battery in service.
2. Clean the battery posts and/or adapters if
necessary.
3. Install the battery post adapters, if needed.
4. Place the battery in the housing.
5. Connect the positive (+) lead to the engine starting
battery.
6. Connect the negative (--) lead to the engine starting
battery.
Refer to the generator set operation manual and the
battery manufacturer’s instructions for battery
maintenance instructions.
When power is applied to theRDC2/DC2 controller (that
is, when the battery is connected), you will be prompted
to set the date and time, and then to set the exerciser.
See Section 1.12 and the generator set operation
manual for instructions.
If the battery is disconnected for service or replacement,
the exercise settings on the RDC2/DC2 controller are
lost. Set the exerciser after installing and connecting the
battery. See Section 1.12, Set Exerciser.
1.10 Generator Set Accessories
Have accessories installed by an authorized distributor/
dealer or a licensed electrician. Follow the installation
instructions providedwith each kit. Use separate conduit
for ACandDC leads to reduce the possibility of electrical
interference. Verify that the leads and conduit do not
interfere with the operation of the generator set or
obstruct the service areas. Verify that the electrical
installation complies with the National Electrical Code
(NEC) and all applicable local codes. See Section 2,
Wiring Diagrams, for more information regarding
generator set electrical connections.
1.10.1 Regulator Heater
The regulator heater kit is designed for Model 20RESA
and 20RESAL generator sets. The regulator heater kit
is recommended in addition to the carburetor heater for
reliable engine starting in temperatures below --18C
(0F). See Figure 1-31 for heater specifications.
Regulator Heater
Heater rating 120 VAC, 60 W
Thermostat 4C/13C (40F/55F) Snap action
Pad diameter 127 mm (5 in.)
Cord length 610 mm (24 in.)
Figure 1-31 Regulator Heater Specifications
The regulator heater requires a source of 120 VAC
power. The generator set is equippedwith one 120 VAC
receptacle. The kit includes an outlet splitter for
powering the regulator heater and an optional
carburetor heater. The circuit should be ground fault
protected.
To install the regulator heater kit, follow the instructions
in TT-1569, provided with the kit. Figure 1-32 shows the
installed regulator heater kit.
1
GM79141
1. Regulator heater pad GM79142
2. Regulator mounting screws M933-06035-60, qty. 2(re-use existing nuts)
3. Heater power cord
2
3
Figure 1-32 Installed Regulator Heater Kit
(for 20RESA/RESAL)
TP-6803 12/1132 Section 1 Installation
1.10.2 Carburetor Heater
An optional carburetor heater is recommended for
improved cold starting in locations where the ambient
temperature drops below 0C (32F). The carburetor
heater prevents condensation and carburetor icing. The
heater turns on when the temperature at the thermostat
falls below approximately 4C (40F) and turns off when
the temperature rises above approximately 16C
(60F). The carburetor heaters are shown in
Figure 1-33.
To install the carburetor heater, follow the instructions
provided with the kit. Figure 1-34 shows the installed
carburetor heater kit installed for a 14 kW generator set.
Figure 1-35 shows the location for the carburetor heater
kit on a 20 kW generator set.
The heater thermostat is installed in the cord.
Figure 1-33 shows the location of the thermostat on the
power cord. The heater power cord and thermostat are
located in the generator set housing air intake area/
battery compartment.
Note: Do not place the heater thermostat inside the
generator set engine compartment. The
thermostat must be exposed to the ambient air.
The heater requires a continuous source of power. Plug
the carburetor heater into the 120 VAC receptacle
provided.
GM19463
23
14RESA/RESAL Carburetor Heater
2 3
20RESA/RESAL Carburetor Heater
GM57968
1
1
1. Power plug
2. Thermostat3. Heater
Figure 1-33 Carburetor Heaters
tp6195
1. Carburetor heater (air cleaner removed to show heater)
2. Carburetor heater power cord
1 2
Figure 1-34 14RESA/RESAL Carburetor Heater
1
tp6514
1. Carburetor heater location
Figure 1-35 20RESA/RESAL Carburetor Heater
Location on Engine (bulkhead removed
to show heater location)
TP-6803 12/11 33Section 1 Installation
1.10.3 OnCue Home Generator
Management System
The OnCue Home Generator Management System
allowsmonitoring and control of your generator set from
a personal computer located in your home or at other
remote locations. OnCue can also be configured to
send email or textmessage notifications in the event of a
generator set fault. See TP-6796, OnCue Software
Operation Manual, for software instructions.
TheOnCue system is available separately asa loose kit.
Use category 5E network cable to connect the RDC2
controller to the customer-supplied Ethernet router and
cable or DSL modem. Route the cable with other
low-voltage signal wiring (for example, the RBUS
communication leads or engine start leads to the
transfer switch), in separate conduit from the AC load
leads. If the network cable is longer than 100 meters
(328 ft.), use a repeater or switch.
Recommended: Use a laptop computer to verify the
network connection before connecting to the generator
set.
Checking the network connection
1. Check for and turn OFF any wireless connections
to the laptop.
2. Connect the network cable to the laptop. Connect
the other end of the network cable to the
customer’s router or modem.
3. Verify the Internet connection by opening your web
browser and going to www.kohlerpower.com or
another website.
4. After verifying the connection through the network
cable, disconnect the network cable from the
laptop and turn the laptop wireless connections
back on.
Connect to the Ethernet cable in the customer
connection area of the generator set. See Figure 1-36.
Use anRJ45 inline coupler, providedwith theOnCue kit,
to connect the customer’s Ethernet cable to the cable in
the customer connection box.
GM84094
1. Ethernet cable for optional OnCue connection
1
Figure 1-36 Network Connection for OnCue
TP-6803 12/1134 Section 1 Installation
1.11 Prestart Installation Check
Review the entire installation section. Inspect all wiring
and connections to verify that the generator set is ready
for operation. Check all items in the following Prestart
Checklist.
Prestart Checklist
Air Cleaner. Check that a clean air cleaner element is
installed to prevent unfiltered air from entering the
engine. See the generator set operation manual for
instructions.
Air Inlets. Check for clean and unobstructed air inlets.
Battery. Check for tight battery connections. Consult
the battery manufacturer’s instructions regarding
battery care and maintenance.
Enclosure. Check that all enclosure panels and
internal baffling are in place.
Exhaust System. Check for exhaust leaks and
blockages. Check the muffler condition.
Inspect the exhaust system components for cracks,
leaks, and corrosion. Check for tight exhaust system
connections.
Check for corroded or brokenmetal parts and replace
them as needed.
Check that the exhaust outlet is unobstructed.
Oil Level. Maintain the oil level at or near, not over, the
full mark on the dipstick.
Operating Area. Check for obstructions that could
block the flow of cooling air. Keep the air intake area
clean. Do not leave rags, tools, or debris on or near the
generator set.
1.12 Set the Exerciser
Set the exerciser to automatically run the generator set
on the desired day and time every week or every two
weeks. See the generator set Operation Manual for
detailed descriptions of the unloaded and loaded
exercise operation.
1.12.1 RDC2 Controller
When power is applied to the RDC2 controller (when the
battery or the utility power for the battery charger is
connected), you will be prompted to set the date and
time, and then to set the exerciser.
The first setting will flash. Press the Up and Down arrow
buttons to change the setting. Press Select to save the
setting and move on to the next. Repeat until the date,
time, and exercise are set and the controller display
shows the mainmenu. See the generator set Operation
Manual for more detailed instructions to set the date and
time and set the exerciser.
Press AUTO to place the generator set controller into
automatic mode.
tp6803
Date:
05Dec2011
Time:
08:31am
Next Exercise:
08:31a 12Dec2011
Setting will flash.
Press the up and down arrowbuttons to change the setting.
Press Select to save thesetting.
Figure 1-37 Set Time, Date, and Exercise (RDC2)
1.12.2 DC2 Controller
To set the exerciser on the DC2 controller, first press
AUTO to place the controller into automatic (standby)
mode. Then press and hold the Exercise button. The
generator set will start and run a 20-minute unloaded
cycle exercise. The generator set will run automatically
for 20 minutes at the same time every 7 days. See the
generator set Operation Manual for more information.
1.12.3 Loaded Exercise
In order to set a loaded exercise using theRDC2 or DC2
controller, a KohlerModel RXT transfer switch must be
connected. See the generator set operation manual for
instructions to set a loaded exercise.
To set a loaded exercise on a generator set connected to
a transfer switch other than a Model RXT, use the
transfer switch controller to set the exercise. Refer to
the transfer switch operation manual for instructions.
TP-6803 12/11 35Section 2 Wiring Diagrams
Section 2 Wiring Diagrams
Figure 2-1 lists the wiring diagram numbers and page
numbers.
Wiring Diagram Description Drawing Number Page
Schematic Diagram ADV-8164 36
Point-to-Point Wiring Diagram GM81217 37
Figure 2-1 Wiring Diagrams and Schematics
TP-6803 12/1136 Section 2 Wiring Diagrams
-
Figure 2-2 Schematic Diagram, ADV-8164
TP-6803 12/11 37Section 2 Wiring Diagrams
-
Figure 2-3 Point-to-Point Wiring Diagram, GM81217
TP-6803 12/1138 Section 2 Wiring Diagrams
Notes
TP-6803 12/11 Appendix 39
Appendix A Abbreviations
The following list contains abbreviations that may appear in this publication.
A, amp ampereABDC after bottom dead centerAC alternating currentA/D analog to digitalADC advanced digital control;
analog to digital converteradj. adjust, adjustmentADV advertising dimensional
drawingAh amp-hourAHWT anticipatory high water
temperatureAISI American Iron and Steel
InstituteALOP anticipatory low oil pressurealt. alternatorAl aluminumANSI American National Standards
Institute (formerly AmericanStandards Association, ASA)
AO anticipatory onlyAPDC Air Pollution Control DistrictAPI American Petroleum Instituteapprox. approximate, approximatelyAPU Auxiliary Power UnitAQMD Air Quality Management DistrictAR as required, as requestedAS as supplied, as stated, as
suggestedASE American Society of EngineersASME American Society of
Mechanical Engineersassy. assemblyASTM American Society for Testing
MaterialsATDC after top dead centerATS automatic transfer switchauto. automaticaux. auxiliaryavg. averageAVR automatic voltage regulatorAWG American Wire GaugeAWM appliance wiring materialbat. batteryBBDC before bottom dead centerBC battery charger, battery
chargingBCA battery charging alternatorBCI Battery Council InternationalBDC before dead centerBHP brake horsepowerblk. black (paint color), block
(engine)blk. htr. block heaterBMEP brake mean effective pressurebps bits per secondbr. brassBTDC before top dead centerBtu British thermal unitBtu/min. British thermal units per minuteC Celsius, centigradecal. calorieCAN controller area networkCARB California Air Resources BoardCAT5 Category 5 (network cable)CB circuit breakerCC crank cyclecc cubic centimeterCCA cold cranking ampsccw. counterclockwiseCEC Canadian Electrical Codecert. certificate, certification, certifiedcfh cubic feet per hour
cfm cubic feet per minuteCG center of gravityCID cubic inch displacementCL centerlinecm centimeterCMOS complementary metal oxide
substrate (semiconductor)com communications (port)coml commercialComl/Rec Commercial/Recreationalconn. connectioncont. continuedCPVC chlorinated polyvinyl chloridecrit. criticalCSA Canadian Standards
AssociationCT current transformerCu coppercUL Canadian Underwriter’s
LaboratoriesCUL Canadian Underwriter’s
Laboratoriescu. in. cubic inchcw. clockwiseCWC city water-cooledcyl. cylinderD/A digital to analogDAC digital to analog converterdB decibeldB(A) decibel (A weighted)DC direct currentDCR direct current resistancedeg., ° degreedept. departmentdia. diameterDI/EO dual inlet/end outletDIN Deutsches Institut fur Normung
e. V. (also Deutsche IndustrieNormenausschuss)
DIP dual inline packageDPDT double-pole, double-throwDPST double-pole, single-throwDS disconnect switchDVR digital voltage regulatorE2PROM, EEPROM
electrically-erasableprogrammable read-onlymemory
E, emer. emergency (power source)ECM electronic control module,
engine control moduleEDI electronic data interchangeEFR emergency frequency relaye.g. for example (exempli gratia)EG electronic governorEGSA Electrical Generating Systems
AssociationEIA Electronic Industries
AssociationEI/EO end inlet/end outletEMI electromagnetic interferenceemiss. emissioneng. engineEPA Environmental Protection
AgencyEPS emergency power systemER emergency relayES engineering special,
engineered specialESD electrostatic dischargeest. estimatedE-Stop emergency stopetc. et cetera (and so forth)
exh. exhaustext. externalF Fahrenheit, femaleFHM flat head machine (screw)fl. oz. fluid ounceflex. flexiblefreq. frequencyFS full scaleft. foot, feetft. lb. foot pounds (torque)ft./min. feet per minuteftp file transfer protocolg gramga. gauge (meters, wire size)gal. gallongen. generatorgenset generator setGFI ground fault interrupter
GND, groundgov. governorgph gallons per hourgpm gallons per minutegr. grade, grossGRD equipment groundgr. wt. gross weightH x W x D height by width by depthHC hex capHCHT high cylinder head temperatureHD heavy dutyHET high exhaust temp., high
engine temp.hex hexagonHg mercury (element)HH hex headHHC hex head capHP horsepowerhr. hourHS heat shrinkhsg. housingHVAC heating, ventilation, and air
conditioningHWT high water temperatureHz hertz (cycles per second)IBC International Building CodeIC integrated circuitID inside diameter, identificationIEC International Electrotechnical
CommissionIEEE Institute of Electrical and
Electronics EngineersIMS improved motor startingin. inchin. H2O inches of waterin. Hg inches of mercuryin. lb. inch poundsInc. incorporatedind. industrialint. internalint./ext. internal/externalI/O input/outputIP internet protocolISO International Organization for
StandardizationJ jouleJIS Japanese Industry Standardk kilo (1000)K kelvinkA kiloampereKB kilobyte (210 bytes)KBus Kohler communication protocolkg kilogram
TP-6803 12/1140 Appendix
kg/cm2 kilograms per squarecentimeter
kgm kilogram-meterkg/m3 kilograms per cubic meterkHz kilohertzkJ kilojoulekm kilometerkOhm, kΩ kilo-ohmkPa kilopascalkph kilometers per hourkV kilovoltkVA kilovolt amperekVAR kilovolt ampere reactivekW kilowattkWh kilowatt-hourkWm kilowatt mechanicalkWth kilowatt-thermalL literLAN local area networkL x W x H length by width by heightlb. pound, poundslbm/ft3 pounds mass per cubic feetLCB line circuit breakerLCD liquid crystal displayLED light emitting diodeLph liters per hourLpm liters per minuteLOP low oil pressureLP liquefied petroleumLPG liquefied petroleum gasLS left sideLwa sound power level, A weightedLWL low water levelLWT low water temperaturem meter, milli (1/1000)M mega (106 when used with SI
units), malem3 cubic meterm3/hr. cubic meters per hourm3/min. cubic meters per minutemA milliampereman. manualmax. maximumMB megabyte (220 bytes)MCCB molded-case circuit breakerMCM one thousand circular milsmeggar megohmmeterMHz megahertzmi. milemil one one-thousandth of an inchmin. minimum, minutemisc. miscellaneousMJ megajoulemJ millijoulemm millimetermOhm,mΩmilliohmMOhm, MΩmegohmMOV metal oxide varistorMPa megapascalmpg miles per gallonmph miles per hourMS military standardms millisecondm/sec. meters per secondmtg. mountingMTU Motoren-und Turbinen-UnionMW megawattmW milliwattμF microfaradN, norm. normal (power source)NA not available, not applicablenat. gas natural gasNBS National Bureau of Standards
NC normally closedNEC National Electrical CodeNEMA National Electrical
Manufacturers AssociationNFPA National Fire Protection
AssociationNm newton meterNO normally openno., nos. number, numbersNPS National Pipe, StraightNPSC National Pipe, Straight-couplingNPT National Standard taper pipe
thread per general useNPTF National Pipe, Taper-FineNR not required, normal relayns nanosecondOC overcrankOD outside diameterOEM original equipment
manufacturerOF overfrequencyopt. option, optionalOS oversize, overspeedOSHA Occupational Safety and Health
AdministrationOV overvoltageoz. ouncep., pp. page, pagesPC personal computerPCB printed circuit boardpF picofaradPF power factorph., ∅ phasePHC Phillips head Crimptite
(screw)PHH Phillips hex head (screw)PHM pan head machine (screw)PLC programmable logic controlPMG permanent magnet generatorpot potentiometer, potentialppm parts per millionPROM programmable read-only
memorypsi pounds per square inchpsig pounds per square inch gaugept. pintPTC positive temperature coefficientPTO power takeoffPVC polyvinyl chlorideqt. quart, quartsqty. quantityR replacement (emergency)
power sourcerad. radiator, radiusRAM random access memoryRBUS RS-485 proprietary
communicationsRDO relay driver outputref. referencerem. remoteRes/Coml Residential/CommercialRFI radio frequency interferenceRH round headRHM round head machine (screw)rly. relayrms root mean squarernd. roundRO read onlyROM read only memoryrot. rotate, rotatingrpm revolutions per minuteRS right sideRTDs Resistance Temperature
Detectors
RTU remote terminal unitRTV room temperature vulcanizationRW read/writeSAE Society of Automotive
Engineersscfm standard cubic feet per minuteSCR silicon controlled rectifiers, sec. secondSI Systeme international d’unites,
International System of UnitsSI/EO side in/end outsil. silencerSMTP simple mail transfer protocolSN serial numberSNMP simple network management
protocolSPDT single-pole, double-throwSPST single-pole, single-throwspec specificationspecs specification(s)sq. squaresq. cm square centimetersq. in. square inchSMS short message serviceSS stainless steelstd. standardstl. steeltach. tachometerTB terminal blockTCP transmission control protocolTD time delayTDC top dead centerTDEC time delay engine cooldownTDEN time delay emergency to
normalTDES time delay engine startTDNE time delay normal to
emergencyTDOE time delay off to emergencyTDON time delay off to normaltemp. temperatureterm. terminalTHD total harmonic distortionTIF telephone influence factortol. toleranceturbo. turbochargertyp. typical (same in multiple
locations)UF underfrequencyUHF ultrahigh frequencyUIF user interfaceUL Underwriter’s Laboratories, Inc.UNC unified coarse thread (was NC)UNF unified fine thread (was NF)univ. universalURL uniform resource locator
(web address)US undersize, underspeedUV ultraviolet, undervoltageV voltVAC volts alternating currentVAR voltampere reactiveVDC volts direct currentVFD vacuum fluorescent displayVGA video graphics adapterVHF very high frequencyW wattWCR withstand and closing ratingw/ withWO write onlyw/o withoutwt. weightxfmr transformer
TP-6803 12/11 Appendix 41
Appendix B Electrical Lead Entry Template
Use the full-scale drawing in Figure 3 to mark the openings for the electrical conduit, if desired. See Section 1.8.2 for
more information.
GM78090SCALE: FULL Note: Dimensions are in mm.
Figure 3 Template, Electrical
TP-6803 12/1142 Appendix
Notes
2011 by Kohler Co. All rights reserved.
TP-6803 12/11
KOHLER CO. Kohler, Wisconsin 53044Phone 920-457-4441, Fax 920-459-1646For the nearest sales/service outlet in theUS and Canada, phone 1-800-544-2444KohlerPower.com
Kohler Power SystemsAsia Pacific Headquarters7 Jurong Pier RoadSingapore 619159Phone (65) 6264-6422, Fax (65) 6264-6455